Workflow editor broken on adding instructions with closing nodes in sequence

Current Situation

• Workflow editor on adding instructions with closing nodes (Fork, If, Cycle, etc) one after other breaks and changes the placement of instructions in the graph.

How to reproduce

• Create a workflow with a fork instruction Fork1 having 2 jobs minimum.
• Add another fork instruction Fork2, below the join of Fork1
• On switching tabs or refreshing the placement of instructions in the graph changes.

Desired Behaviour

• Workflow editor on adding instructions with closing nodes (Fork, If, Cycle, etc) one after other should not break or change the placement of instructions.